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首页> 外文期刊>Scripta materialia >Irradiation-induced creep in nanostructured Cu alloys
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Irradiation-induced creep in nanostructured Cu alloys

机译:辐照引起的纳米结构铜合金的蠕变

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摘要

Irradiation-induced creep measurements were performed on pure Cu and Cu_(93.5)W_(6.5). By using 1.8 MeV Kr~+ irradiation of freestanding 300 nm films, nearly homogeneous damage in excess of 100 dpa could be obtained, yielding transient and steady-state creep regimes. The steady-state creep rate was proportional to the applied stress, yielding irradiation creep compliance of 1.2 and 0.32 x 10~(-4) MPa~(-1) dpa~(-1) in Cu and Cu_(93.5)W_(6.5), respectively. The microstructure of the two-phase alloy was highly stable but that of pure Cu was not.
机译:对纯Cu和Cu_(93.5)W_(6.5)进行辐照引起的蠕变测量。通过对独立的300 nm薄膜使用1.8 MeV Kr〜+辐照,可以获得超过100 dpa的近乎均匀的损伤,从而产生了瞬态和稳态蠕变状态。稳态蠕变速率与所施加的应力成正比,在Cu和Cu_(93.5)W_(6.5)中产生1.2和0.32 x 10〜(-4)MPa〜(-1)dpa〜(-1)的辐照蠕变柔量。 ), 分别。两相合金的显微组织非常稳定,而纯铜的显微组织却不稳定。

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